Class HtmlPanel

Provides HTML rendering using the text property.
MewUI control that will render html content in it's client rectangle.
If the layout of the html resulted in its content beyond the client bounds of the panel it will show scrollbars (horizontal/vertical) allowing to scroll the content.
The control will handle mouse and keyboard events on it to support html text selection, copy-paste and mouse clicks.

Inheritance

object

MewObject

Element

UIElement

FrameworkElement

TextElement

Control

HtmlControl

HtmlPanel

Implements

IDisposable

IVisualTreeHost

Inherited Members

HtmlControl._htmlContainer

HtmlControl._baseCssData

HtmlControl._lastScrollOffset

HtmlControl.AvoidImagesLateLoadingProperty

HtmlControl.IsSelectionEnabledProperty

HtmlControl.IsContextMenuEnabledProperty

HtmlControl.BaseStylesheetProperty

HtmlControl.TextProperty

HtmlControl.LoadComplete

HtmlControl.LinkClicked

HtmlControl.RenderError

HtmlControl.StylesheetLoad

HtmlControl.ImageLoad

HtmlControl.AvoidImagesLateLoading

HtmlControl.IsSelectionEnabled

HtmlControl.IsContextMenuEnabled

HtmlControl.BaseStylesheet

HtmlControl.Text

HtmlControl.SelectedText

HtmlControl.SelectedHtml

HtmlControl.GetHtml()

HtmlControl.GetElementRectangle(string)

HtmlControl.ClearSelection()

HtmlControl._mouseMovePoint

HtmlControl.OnMouseMove(MouseEventArgs)

HtmlControl.OnMouseLeave()

HtmlControl.OnMouseDown(MouseEventArgs)

HtmlControl.OnMouseDoubleClick(MouseEventArgs)

HtmlControl.OnLoadComplete(EventArgs)

HtmlControl.OnLinkClicked(HtmlLinkClickedEventArgs)

HtmlControl.OnRenderError(HtmlRenderErrorEventArgs)

HtmlControl.OnStylesheetLoad(HtmlStylesheetLoadEventArgs)

HtmlControl.OnImageLoad(HtmlImageLoadEventArgs)

HtmlControl.OnRefresh(HtmlRefreshEventArgs)

HtmlControl.InvokeMouseMove()

Control.BackgroundProperty

Control.BorderBrushProperty

Control.TemplateProperty

Control.CornerRadiusProperty

Control.BorderThicknessProperty

Control.PaddingProperty

Control.IsPressedProperty

Control.HasValidationErrorProperty

Control.ValidationErrorsProperty

Control.SetPressed(bool)

Control.ComputeVisualState()

Control.OnVisualStateChanged(Control.VisualState, Control.VisualState)

Control.EnsureStyleResolved()

Control.ApplyTemplate()

Control.OnApplyTemplate()

Control.GetTemplateChild<T>(string)

Control.MeasureContent(Size)

Control.ArrangeContent(Rect)

Control.RenderSubtree(IGraphicsContext)

Control.ResolveVisualState(bool)

Control.OnThemeChanged(Theme, Theme)

Control.OnVisualRootChanged(Element, Element)

Control.OnFontCacheInvalidated(MewProperty)

Control.GetTextRunStyle()

Control.MeasureEngineText(ReadOnlySpan<char>, double, TextWrapping, bool)

Control.DrawEngineText(IGraphicsContext, ReadOnlySpan<char>, Rect, Color, TextAlignment, TextAlignment, TextWrapping, TextTrimming, object, bool)

Control.PickAccentBorder(Theme, Color, in Control.VisualState, double)

Control.PickButtonBackground(in Control.VisualState, Color?)

Control.PickControlBackground(in Control.VisualState, Color?)

Control.PickControlBackground(in Control.VisualState, Color)

Control.GetBorderVisualInset()

Control.DrawBackgroundAndBorder(IGraphicsContext, Rect, Color, Color, double, double)

Control.DrawBackgroundAndBorder(IGraphicsContext, Rect, Color, Color, Thickness, CornerRadius)

Control.Background

Control.BorderBrush

Control.CornerRadius

Control.BorderThickness

Control.Padding

Control.ContentBounds

Control.CurrentVisualState

Control.IsPressed

Control.HasValidationError

Control.ValidationErrors

Control.StyleName

Control.Template

TextElement.ForegroundProperty

TextElement.FontFamilyProperty

TextElement.FontSizeProperty

TextElement.FontWeightProperty

TextElement.FontStyleProperty

TextElement.Foreground

TextElement.FontFamily

TextElement.FontSize

TextElement.FontWeight

TextElement.FontStyle

FrameworkElement.ThemeProperty

FrameworkElement.WidthProperty

FrameworkElement.HeightProperty

FrameworkElement.MinWidthProperty

FrameworkElement.MinHeightProperty

FrameworkElement.MaxWidthProperty

FrameworkElement.MaxHeightProperty

FrameworkElement.MarginProperty

FrameworkElement.HorizontalAlignmentProperty

FrameworkElement.VerticalAlignmentProperty

FrameworkElement.TagProperty

FrameworkElement.ToolTipProperty

FrameworkElement.ContextMenuProperty

FrameworkElement.OnMouseEnter()

FrameworkElement.ResolveToolTipContent()

FrameworkElement.GetDpi()

FrameworkElement.Dispose()

FrameworkElement.GetSnappedBorderBounds(Rect)

FrameworkElement.GetGraphicsFactory()

FrameworkElement.OnSizeChanged(SizeChangedEventArgs)

FrameworkElement.GetArrangedBounds(Rect)

FrameworkElement.ArrangeOverride(Size)

FrameworkElement.StyleSheet

FrameworkElement.ToolTip

FrameworkElement.ContextMenu

FrameworkElement.Width

FrameworkElement.Height

FrameworkElement.MinWidth

FrameworkElement.MinHeight

FrameworkElement.MaxWidth

FrameworkElement.MaxHeight

FrameworkElement.Margin

FrameworkElement.HorizontalAlignment

FrameworkElement.VerticalAlignment

FrameworkElement.Tag

FrameworkElement.ActualWidth

FrameworkElement.ActualHeight

FrameworkElement.Theme

FrameworkElement.SizeChanged

UIElement.CacheModeProperty

UIElement.IsVisibleProperty

UIElement.IsEnabledProperty

UIElement.IsEffectivelyEnabledProperty

UIElement.IsFocusedProperty

UIElement.IsFocusWithinProperty

UIElement.IsMouseOverProperty

UIElement.IsMouseCapturedProperty

UIElement.OpacityProperty

UIElement.IsHitTestVisibleProperty

UIElement.TabIndexProperty

UIElement.IsTabStopProperty

UIElement.FocusableProperty

UIElement.SkipViewportCullProperty

UIElement.CursorProperty

UIElement.AllowDropProperty

UIElement.CanDragProperty

UIElement.InvalidateVisual()

UIElement.OnParentChanged()

UIElement.OnMewPropertyChanged(MewProperty)

UIElement.MeasureCore(Size)

UIElement.Render(IGraphicsContext)

UIElement.InvalidateVisualState()

UIElement.HitTest(Point)

UIElement.Focus()

UIElement.PointToScreen(Point)

UIElement.PointFromScreen(Point)

UIElement.RectToScreen(Rect)

UIElement.RectFromScreen(Rect)

UIElement.ComputeIsEnabledSuggestion()

UIElement.OnGotFocus()

UIElement.OnLostFocus()

UIElement.OnKeyUp(KeyEventArgs)

UIElement.OnVisibilityChanged()

UIElement.OnEnabledChanged()

UIElement.OnDragEnter(DragEventArgs)

UIElement.OnDragOver(DragEventArgs)

UIElement.OnDragLeave(DragEventArgs)

UIElement.OnDrop(DragEventArgs)

UIElement.OnDragStarting(DragStartingEventArgs)

UIElement.OnDragCompleted(DragCompletedEventArgs)

UIElement.BeginDrag(IDataObject, DragDropEffects, DragPreviewContent)

UIElement.CacheMode

UIElement.SkipViewportCull

UIElement.IsVisible

UIElement.IsEnabled

UIElement.IsEffectivelyEnabled

UIElement.Opacity

UIElement.IsHitTestVisible

UIElement.TabIndex

UIElement.IsTabStop

UIElement.Cursor

UIElement.IsFocused

UIElement.IsFocusWithin

UIElement.IsMouseOver

UIElement.IsMouseCaptured

UIElement.Focusable

UIElement.AllowDrop

UIElement.CanDrag

UIElement.Transitions

UIElement.Triggers

UIElement.GotFocus

UIElement.LostFocus

UIElement.MouseEnter

UIElement.MouseLeave

UIElement.MouseDown

UIElement.MouseDoubleClick

UIElement.MouseUp

UIElement.MouseMove

UIElement.MouseWheel

UIElement.KeyDown

UIElement.KeyUp

UIElement.DragEnter

UIElement.DragOver

UIElement.DragLeave

UIElement.Drop

UIElement.DragStarting

UIElement.DragCompleted

Element.Set<T>(ref T, T)

Element.SetDouble(ref double, double)

Element.AttachChild(Element)

Element.DetachChild(Element)

Element.AttachLogicalChild(Element)

Element.DetachLogicalChild(Element)

Element.OnLogicalChildTaken(Element)

Element.ValidateLogicalChild(Element, bool)

Element.ChangeLogicalChild(Element, Element)

Element.FindLogicalRoot()

Element.OnLogicalParentChanged()

Element.OnLogicalRootChanged(Element, Element)

Element.Measure(Size)

Element.Arrange(Rect)

Element.InvalidateMeasure()

Element.InvalidateArrange()

Element.InvalidateArrangeForCurrentLayoutPass()

Element.FindVisualRoot()

Element.IsAncestorOf(Element)

Element.IsDescendantOf(Element)

Element.TransformToAncestor(Element)

Element.TransformToDescendant(Element)

Element.TransformToVisual(Element)

Element.TranslatePoint(Point, Element)

Element.TranslateRect(Rect, Element)

Element.ResolveInheritedValue<T>(MewProperty<T>)

Element.Commands

Element.InputMap

Element.DesiredSize

Element.RenderSize

Element.Parent

Element.LogicalParent

Element.IsMeasureDirty

Element.IsArrangeDirty

MewObject.OnValueSourceChanged(MewProperty)

MewObject.GetValue<T>(MewProperty<T>)

MewObject.SetValue<T>(MewProperty<T>, T)

MewObject.SetCurrentValue<T>(MewProperty<T>, T)

MewObject.CommitTargetValue<T>(MewProperty<T>, T)

MewObject.ClearLocalValue<T>(MewProperty<T>)

MewObject.SetValue<T>(MewPropertyKey<T>, T)

MewObject.CoerceValue<T>(MewProperty<T>)

MewObject.SetBinding<T>(MewProperty<T>, ObservableValue<T>, BindingMode?)

MewObject.SetBinding<TProp, TSource>(MewProperty<TProp>, ObservableValue<TSource>, Func<TSource, TProp>, Func<TProp, TSource>, BindingMode?)

MewObject.SetBinding<TRoot, T>(MewProperty<T>, TRoot, BindingPath<TRoot, T>, BindingMode?, T)

MewObject.SetBinding<TProp, TRoot, TSource>(MewProperty<TProp>, TRoot, BindingPath<TRoot, TSource>, Func<TSource, TProp>, Func<TProp, TSource>, BindingMode?, TProp)

MewObject.SetBinding<TSource, T>(MewProperty<T>, TSource, Func<TSource, T>, Action<TSource, T>, BindingMode?, string)

MewObject.SetBinding<TProp, TSource, TValue>(MewProperty<TProp>, TSource, Func<TSource, TValue>, Func<TValue, TProp>, Action<TSource, TValue>, Func<TProp, TValue>, BindingMode?, string)

MewObject.SetBinding<TSource, T>(MewProperty<T>, TSource, Func<TSource, ObservableValue<T>>, BindingMode?)

MewObject.ClearBinding<T>(MewProperty<T>)

MewObject.SetBinding<T>(MewProperty<T>, MewObject, MewProperty<T>)

MewObject.SetBinding<TProp, TSource>(MewProperty<TProp>, MewObject, MewProperty<TSource>, Func<TSource, TProp>, Func<TProp, TSource>, BindingMode?)

MewObject.DisposePropertyBindings()

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: MewExtendedToolkit.Html

Assembly: MewExtendedToolkit.Html.dll

Syntax

public class HtmlPanel : HtmlControl, IDisposable, IVisualTreeHost

Remarks

See HtmlControl for more info.

Constructors

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HtmlPanel()

Creates a new HtmlPanel and sets a basic css for it's styling.

Declaration

public HtmlPanel()

Fields

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LargeChangeFactor

Declaration

protected const double LargeChangeFactor = 0.9

Field Value

Type	Description
double

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SmallChange

Declaration

protected const double SmallChange = 25

Field Value

Type	Description
double

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_horizontalScrollBarValue

Declaration

protected readonly ObservableValue<double> _horizontalScrollBarValue

Field Value

Type	Description
ObservableValue<double>

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_verticalScrollBarValue

Declaration

protected readonly ObservableValue<double> _verticalScrollBarValue

Field Value

Type	Description
ObservableValue<double>

Methods

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ArrangeCore(Rect)

Core arrangement logic. Override in derived classes.

Declaration

protected override void ArrangeCore(Rect finalRect)

Parameters

Type	Name	Description
Rect	finalRect

Overrides

Aprillz.MewUI.Controls.FrameworkElement.ArrangeCore(Aprillz.MewUI.Rect)

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HtmlHeight(Size)

Get the width the HTML has to render in (not including vertical scroll iff it is visible)

Declaration

protected override double HtmlHeight(Size size)

Parameters

Type	Name	Description
Size	size

Returns

Type	Description
double

Overrides

HtmlControl.HtmlHeight(Size)

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HtmlWidth(Size)

Get the width the HTML has to render in (not including vertical scroll iff it is visible)

Declaration

protected override double HtmlWidth(Size size)

Parameters

Type	Name	Description
Size	size

Returns

Type	Description
double

Overrides

HtmlControl.HtmlWidth(Size)

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MeasureOverride(Size)

Perform the layout of the html in the control.

Declaration

protected override Size MeasureOverride(Size constraint)

Parameters

Type	Name	Description
Size	constraint

Returns

Type	Description
Size

Overrides

Aprillz.MewUI.Controls.Control.MeasureOverride(Aprillz.MewUI.Size)

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OnDispose()

Called when the element is being disposed. Override to release resources.

Declaration

protected override void OnDispose()

Overrides

Aprillz.MewUI.Controls.FrameworkElement.OnDispose()

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OnDpiChanged(uint, uint)

Called when the DPI changes.

Declaration

protected override void OnDpiChanged(uint oldDpi, uint newDpi)

Parameters

Type	Name	Description
uint	oldDpi	The old DPI value.
uint	newDpi	The new DPI value.

Overrides

Control.OnDpiChanged(uint, uint)

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OnHitTest(Point)

Declaration

protected override UIElement? OnHitTest(Point point)

Parameters

Type	Name	Description
Point	point

Returns

Type	Description
UIElement

Overrides

Aprillz.MewUI.Controls.UIElement.OnHitTest(Aprillz.MewUI.Point)

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OnKeyDown(KeyEventArgs)

Handle key down event for selection, copy and scrollbars handling.

Declaration

protected override void OnKeyDown(KeyEventArgs e)

Parameters

Type	Name	Description
KeyEventArgs	e

Overrides

HtmlControl.OnKeyDown(KeyEventArgs)

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OnMouseUp(MouseEventArgs)

Handle mouse up to set focus on the control.

Declaration

protected override void OnMouseUp(MouseEventArgs e)

Parameters

Type	Name	Description
MouseEventArgs	e

Overrides

HtmlControl.OnMouseUp(MouseEventArgs)

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OnMouseWheel(MouseWheelEventArgs)

Handle mouse wheel for scrolling.

Declaration

protected override void OnMouseWheel(MouseWheelEventArgs e)

Parameters

Type	Name	Description
MouseWheelEventArgs	e

Overrides

Aprillz.MewUI.Controls.UIElement.OnMouseWheel(Aprillz.MewUI.MouseWheelEventArgs)

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OnRender(IGraphicsContext)

Handle minor case where both scroll are visible and create a rectangle at the bottom right corner between them.

Declaration

protected override void OnRender(IGraphicsContext context)

Parameters

Type	Name	Description
IGraphicsContext	context

Overrides

HtmlControl.OnRender(IGraphicsContext)

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PerformHtmlLayout(Size)

Perform html container layout by the current panel client size.

Declaration

protected Size PerformHtmlLayout(Size constraint)

Parameters

Type	Name	Description
Size	constraint

Returns

Type	Description
Size

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ScrollToElement(string)

Adjust the scrollbar of the panel on html element by the given id.
The top of the html element rectangle will be at the top of the panel, if there is not enough height to scroll to the top the scroll will be at maximum.

Declaration

public virtual void ScrollToElement(string elementId)

Parameters

Type	Name	Description
string	elementId	the id of the element to scroll to

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ScrollToPoint(double, double)

Set the control scroll offset to the given values.

Declaration

public void ScrollToPoint(double x, double y)

Parameters

Type	Name	Description
double	x
double	y

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TextPropertyChanged(string)

On text property change reset the scrollbars to zero.

Declaration

protected override void TextPropertyChanged(string n)

Parameters

Type	Name	Description
string	n

Overrides

HtmlControl.TextPropertyChanged(string)

Implements

IDisposable

Aprillz.MewUI.IVisualTreeHost

Extension Methods

ControlExtensions.LoadRtfFile(HtmlControl, Stream)

ControlExtensions.LoadRtfFile(HtmlControl, string)

ControlExtensions.LoadRtfText(HtmlControl, string)

ControlExtensions.Text(HtmlControl, string)